Hook for pergola (various customizable styles)

This model allows the generation of hooks in various styles. My intention was to attach hooks to my pergola, but the design may fit in other cases too.

Basically it provides three styles:

• Angular: angular hook with a hole in the center for a screw (I attached a led spotlight on my pergola)
• Rounded: a "normal" counded hook
• Semicircle: not really a hook but a half circle so that you can thread a yarn through

All dimensions are customizable.